bootstrap adminlte教程11：打造内部邮件系统 -显示未读邮件数量

这最后二个功能了。

一是在登录用户后，显示有多少未阅的邮件。必境邮件是点到点，需要提示。

二是在用户打开邮件查看内容的时候，更改其中的emailstate为1。

 1.在home控制器的index方法

//读取未读邮件的条数
			int emalilist = (db.Emails.Where(c => c.EmailState == "0" && c.ReceiveUser == user.UserName)).Count();			
             Session["emalcount"] = emalilist.ToString();

　然后更改L和admin布局

<!-- Navbar Right Menu -->
						<div class="navbar-custom-menu">
							<ul class="nav navbar-nav">
								<!-- Messages: style can be found in dropdown.less-->
								<li class="dropdown messages-menu">
									<!-- Menu toggle button -->
									<a href="#" class="dropdown-toggle" data-toggle="dropdown">
										<i class="fa fa-envelope-o"></i>
										<span class="label label-success">@Session["emalcount"]</span>
									</a>
									<ul class="dropdown-menu">
										<li class="header">你有 <span class="label label-primary">@Session["emalcount"] </span>  未读邮件</li>
										<li>
											<!-- inner menu: contains the messages -->
											<ul class="menu">
												<li><a href="~/Emails/Index"><i class="fa fa-inbox"></i> 收件箱</a></li>
												<li><a href="~/Emails/SeedIndex"><i class="fa fa-envelope-o"></i> 已发邮箱</a></li>
												<li><a href="~/Emails/Create"><i class="fa fa-file-text-o"></i> 发邮件</a></li>
												<!-- end message -->
											</ul>
											<!-- /.menu -->
										</li>
										<li class="footer">welcome for you!</li>
									</ul>
								</li>

　　3，看效果

 

 

5.更改Emails控制器的index方法，加上写入的

//默认情况下是只显示未阅读的。同时按creattime降序
			string myusername = Session["username"].ToString();
			var emalilist = db.Emails.Where(c => c.EmailState == "0"&&c.ReceiveUser== myusername).OrderByDescending(z => z.CreatTime);
			Session["emalcount"] = (emalilist.Count()).ToString();

　　

6.修改index方法

		<div class="box-body no-padding" style="display: block;">
			<ul class="nav nav-pills nav-stacked">
				<li class="active">
					<a href="~/Emails/Index">
						<i class="fa fa-inbox"></i> 收件箱
						<span class="label label-primary pull-right">@Session["emalcount"]</span>
					</a>
				</li>
				<li><a href="~/Emails/SeedIndex"><i class="fa fa-envelope-o"></i> 已发邮箱</a></li>
				<li><a href="~/Emails/Create"><i class="fa fa-file-text-o"></i> 发邮件</a></li>
			 
			</ul>
		</div>
		<!-- /.box-body -->

　　

7.效果